The Gator MicroZip set is a tool for fine sanding. It fits perfectly under your index finger, allowing you to get to the hardest to reach places. The set includes sheets of sandpaper in different grits, you can go all the way from a rough finish to a perfectly smooth surface with one tool. It has a velcro attachment, making changing sandpaper quick and easy. The sandpaper is made of premium P-grade aluminum oxide, provides a consistent finish and helps you achieve a finer final finish. The tool is made of high-density foam, it is durable, lightweight and provides a soft sanding surface for exceptional comfort. A special resin coating locks the grit to the paper and helps resist clogging and moisture buildup, extending the life of the sandpaper sheet.